They're going to add a few more things to the menu, but I'm sure if you really want it removed, by the time that 57 is production reader you'll be able to remove it with the built in CSS editor they plan to offer.

I personally don't care about pocket, email or screenshot but if it enables sharing to Telegram and sending to other devices, that in itself makes it highly valuble to me. As these two things I do A LOT!